2403-47-6Relevant academic research and scientific papers
Synthesis of DPA-triazole structures and their application as ligand for metal catalyzed organic reactions
Colombo Dugoni, Greta,Sacchetti, Alessandro,Urra Mancilla, Carolina
, (2021/12/06)
In this work, the use of DPA-triazole (DPA = dipicolylamine) molecules as ligands for metal catalyzed organic reactions has been investigated. A small library of ligands has been prepared by a CuAAC (click reaction) between propargyl-DPA and different azi
Tropylium salts as efficient organic Lewis acid catalysts for acetalization and transacetalization reactions in batch and flow
Lyons,Crocker,Enders,Nguyen
supporting information, p. 3993 - 3996 (2017/09/08)
Acetalization reactions play significant roles in the synthetically important masking chemistry of carbonyl compounds. Herein we demonstrate for the first time that tropylium salts can act as organic Lewis acid catalysts to facilitate acetalization and transacetalization reactions of a wide range of aldehyde substrates. This metal-free method works efficiently in both batch and flow conditions, prompting further future applications of tropylium organocatalysts in green synthesis.
Stereoselective synthesis of nipecotic acid derivatives via palladium-catalyzed decarboxylative cyclization of γ-methylidene-δ- valerolactones with imines
Shintani, Ryo,Murakami, Masataka,Hayashi, Tamio
supporting information; experimental part, p. 457 - 459 (2009/07/11)
(Chemical Equation Presented) A new synthetic method of multisubstituted nipecotic acid (piperidine-3-carboxylic acid) derivatives has been developed by way of palladium-catalyzed decarboxylative cyclization of γ-methylidene- δ-valerolactones with (mines.
Gallium triiodide as a highly efficient and mild catalyst for the diethyl acetalization of carbonyl compounds
Ding, Jin-Chang,Xu, Rong,Liu, Miao-Chang,Chen, Xi-An,Wu, Hua-Yue
experimental part, p. 566 - 568 (2009/07/18)
Diethyl acetals were obtained from carbonyl compounds in good to excellent yields under mild reaction conditions in the presence of triethyl orthoformate and a catalytic amount of gallium triiodide in anhydrous ethanol.
Sequential and tandem oxidation/acetalization procedures for the direct generation of acetals from alcohols
Smith, Brendan M.,Graham, Andrew E.
, p. 4891 - 4894 (2008/02/08)
Alcohols are transformed directly into either acyclic or cyclic acetals in both tandem and sequential oxidation/acetalization processes using manganese dioxide, trialkyl orthoformates and catalytic quantities of indium triflate.
2,4,4,6-Tetrabromo-2,5-cyclohexadienone (TABCO) as a versatile, efficient, and chemoselective catalyst for the acetalization and transacetalization of carbonyl compounds, the preparation of acetonides from epoxides and acylals (1,1-diacetates) from aldehydes
Firouzabadi, Habib,Iranpoor, Nasser,Shaterian, Hamid Reza
, p. 2195 - 2205 (2007/10/03)
The efficient and chemoselective preparation of acetals and ketals from carbonyl compounds, transacetalization reactions, the conversion of epoxides to acetonides, and the preparation of acylals from aldehydes in the presence of catalytic amounts of 2,4,4,6-tetrabromo-2,5-cyclohexadienone (TABCO) are described.
